Tunnelling machines - road headers , continuous miners and impact rippers - safety requirements ; german version en 12111 : 2002 隧道掘进机.巷道掘进机联合采矿机和冲击式挑顶机
Based on applicability of each type of tbm , users can select appropriate tbms to meet their needs and geological conditions 使用者可根据地质条件及特殊需要对隧道掘进机进行初步的选型。